[U-Boot] handling of bad blocks in nand

[Grant Edwards]

On 2010-08-13, Grant Edwards <grant.b.edwards at gmail.com> wrote:
> On 2010-07-09, Scott Wood <scottwood at freescale.com> wrote:
>> On Fri, Jul 09, 2010 at 08:56:40AM -0400, Ben Gardiner wrote:
>>
>>> If you are putting an MTD filesystem in that partition then the
>>> filesystem itself will take care of bad blocks that might occur in
>>> the partition during runtime. During the flash programming of this
>>> filesystem using nand write.jffs2 (or .e) will skip bad blocks that
>>> might occur in the partition.
>>> 
>>> If you are putting an image (kernel or initrd) into the partition then
>>> the 'nand read.e' and 'nand write.e' (as well as mtd-utils nandwrite)
>>> will handle bad blocks by skipping over them.
>>
>> On any recent u-boot, the .jffs2/.e/.i suffixes are maintained for
>> compatibility only -- bad block skipping is now the default behavior.
>
> I'm using 1.3.4 (that's what's supported by Atmel).  While that's the
> current "released" version, it appears to be over two years old?

Never mind.  I see that the version naming scheme has changed and what
I mistook for datestamped snapshots are actually released versions.

That said, 1.3.4 is the most recent version supported by Atmel.  So my
choices are try to port Atmels patches to a recent version or make do
with the nand flash support in 1.3.4.

-- 
Grant Edwards               grant.b.edwards        Yow! When this load is
                                  at               DONE I think I'll wash it
                              gmail.com            AGAIN ...